Does a 3.7V Lithium Battery Charge Automatically When USB is Connected, and What Current Does the USB Type-C Input Support?

#1

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Title: Does a 3.7V Lithium Battery Charge Automatically When USB is Connected, and What Current Does the USB Type-C Input Support?

Message:

Hello everyone,

I am working with a system that uses a 3.7V lithium battery connected via a JST port and a USB Type-C input. I have a few questions and hope someone with experience can help clarify them:

  1. Does the battery charge automatically when the USB input is connected?
  • I would like to know if connecting the USB input to the device automatically charges the lithium battery through the JST port interface or if any additional steps are required.
  1. Is it possible to connect an external charger to the USB Type-C input?
  • I would like to confirm whether I can use an external charger connected to the USB Type-C input and if it is safe for charging the battery.
  1. What is the maximum current allowed by the USB Type-C input?
  • I want to know the maximum current that the USB Type-C input can handle to avoid overloading and potential damage to the system.

I appreciate any advice or experiences you can share on this topic.

Thank you for your help!

#2

Yes, after connecting both the USB and lithium battery to the development board, the lithium battery can be charged directly.

1 Like
#3

For a more detailed reply, tell us the actual device model!

For a self-help reply, look at the schematic for the device and then lookup the charging chip specs!

For a reality check, going wrong with LiPo is very rarely catastrophic, but you should be diligent in your own research because any mishaps are on you!

#4

Wireless Stick Lite V3